JP2008044687A - Sheet handling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the handling speed of a sheet handling device which performs post-handling such as punching or punching and ring binder installation for the paper fed from a copying machine. <P>SOLUTION: This sheet handling device comprises a control means for increasing the feeding speed of a conveying part when a sheet discharge completion sensor on the copying machine side receives a discharge completion signal by communicating with the copying machine on the previous stage. Since the feeding speed is changed earlier than conventional machines the conveying part of which is increased in speed after the rear end of a sheet is completely pulled into the sheet handing device, the distance between the sheet and the sheet next fed is increased. Since time allowance is produced for punching and others, the sheet handling device can be adapted to the copying machines with high handling speeds. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper processing apparatus that performs punch processing and bind processing on paper discharged from a copying machine, and in particular, a paper processing apparatus that can cope with an increase in paper supply speed from a copying machine. It is about.

  Copiers with built-in staplers and punch devices as post-processing devices that automatically execute stapling and punching with staples following copying (Patent Documents 1, 2, etc.) are widely known and discharged from the copier. There is also a proposal of a post-processing device that performs bookbinding by attaching a ring binder to a sheet of paper after punching the sheet to be printed (Patent Document 3). The post-processing apparatus of Patent Document 3 is the application of the applicant of the present application, but the applicant of the present application has applied for a post-processing apparatus that further develops the configuration of Patent Document 3 as Patent Application 2005-216562. Here, after punching a sheet of paper that is ejected from the copier one by one, after punching a sheet of paper, after attaching a ring binder to that sheet of paper and ejecting it The configuration of the processing device is presented in detail.

  When sequentially punching paper that is supplied one by one from the copying machine, the punch mechanism in the paper processing unit temporarily stops the paper, performs punching, and sends the paper to the next process. As the processing speed of the machine increases, it becomes difficult to secure the sheet interval. That is, while one sheet is stopped and the punch process is being performed, if the next sheet is fed into the punch section and overlaps the previous sheet, the process after the punch process is hindered. It becomes impossible to cope with processing speed.

The paper processing apparatus disclosed in Japanese Patent Application No. 2005-216562 addresses the above problem by dividing the paper transport unit into a plurality of parts in the transport direction and arranging the plurality of transport units in series to control the respective feed speeds. The first transport section on the paper entrance side operates at the same speed as the paper feed speed of the copying machine to receive the paper from the copying machine, and when the trailing edge of the paper passes the sensor arranged at the paper entrance, that is, the paper is completely When drawn into the paper processing apparatus, the drive speed of the first transport unit is switched to high speed and sent to the second transport unit, and sent to the punch unit through the transport unit after the second transport unit driven at high speed, A gap is set between the next paper and the next paper is prevented from reaching the punching section during the punching process. When the first transport unit delivers the paper to the second transport unit, the first transport unit returns to the same speed as the paper feed speed of the copying machine, and waits for the next sheet to be supplied from the copying machine.
JP 2000-185869 A Japanese Patent No. 3700571 JP 2005-138549 A

  In a conventional paper processing apparatus designed to speed up paper feeding, when the trailing edge of paper fed from a copying machine passes a sensor arranged at the paper entrance, the driving speed is switched to high speed and sent to the next transport unit. However, if the acceleration start timing can be further advanced, it is possible to improve the overall processing capability including the copying machine. Therefore, an object of the present invention is to make the acceleration start timing of a sheet received from a copying machine as early as possible.

  The present invention is proposed to achieve the above object, and is a sheet processing apparatus that performs post-processing such as punch processing or punch processing and ring binder mounting processing on a sheet supplied from a copying machine, Before the paper is taken in and at the time of taking in the paper, the feed speed of the paper transport unit is controlled to be equal to the feed speed on the copier side, and the feed speed of the transport unit is increased when the paper pull-in detection sensor detects the paper pull-in completion In the paper processing apparatus provided with the control means for conveying to the punch processing etc., the control means for increasing the feeding speed of the conveyance section at the time of receiving the discharge completion signal of the paper discharge completion sensor provided on the copier side is provided. The present invention provides a sheet processing apparatus characterized by the above.

  In addition, when the paper pull-in detection sensor detects completion of paper pull-in, control means for increasing the feed speed of the transport unit and transporting it to punching processing, etc., and a discharge completion signal from a paper discharge completion sensor provided on the copier side A sheet processing apparatus is provided that includes a switching unit that can arbitrarily select a control unit that increases the feeding speed of the transport unit at the point of time when the signal is received.

  In addition, it communicates with the control unit of the copier, and when the paper pull-in detection sensor detects the paper pull-in completion signal communication function, when the paper pull-in detection is detected, the feeding speed of the transport unit is increased to perform punch processing. And a control means for automatically switching between a control means for transporting to a control section and a control means for increasing the feeding speed of the transport section when a discharge completion signal from a paper discharge completion sensor provided on the copier side is received. A sheet processing apparatus is provided.

  The paper processing apparatus according to the present invention increases the feeding speed of the transport unit when receiving a discharge completion signal from a paper discharge completion sensor provided on the copier side, so that the trailing edge of the paper is completely transferred into the paper processing apparatus. Will be shifted earlier than the conventional machine that speeds up the conveyance section after being pulled in, the interval between the next paper to be fed is expanded, and there is a time allowance for punch processing etc., so the processing speed is high It can correspond to a simple copier.

  The present invention relates to a paper processing apparatus for performing post-processing such as punching processing or punching processing and ring binder mounting processing on paper supplied from a copying machine. Paper with control means that controls the feed speed to be equal to the feed speed on the copier side, and when the paper pull-in detection sensor detects paper pull-in completion, the feed speed of the transport section is increased and transported to punch processing, etc. The processing device is equipped with a control means for increasing the feed speed of the transport unit when a discharge completion signal from a paper discharge completion sensor provided on the copier side is received, so that the paper is transported when the paper is completely pulled in. The purpose of accelerating the start of acceleration was achieved compared to conventional machines that increase the feed speed of the machine.

  FIG. 1 shows an outline of a sheet processing apparatus 1 that performs a punching process and a ring binder mounting process as an example of a sheet processing apparatus. The paper processing apparatus 1 has the same mechanical configuration as the paper processing apparatus previously proposed by the applicant of the present application (patent application No. 2005-216562), and is connected to the copying machine 21 and discharged from the copying machine 21. The finisher 31 such as a staple processing device, a sorting tray unit, or the like can be optionally connected downstream of the paper processing device.

  The conveyance unit 2 disposed horizontally in the upper part of the sheet processing apparatus 1 includes first to fourth feed roller devices 3, 4, 5, and 6 arranged in series, and a pass-through mode is selected as an operation mode. In this case, the sheet fed from the copying machine passes through the four feed roller devices 3, 4, 5, and 6 and is discharged to the option finisher 31 at the subsequent stage.

  When the bind processing mode is selected, after the sheet is stopped by the fourth feed roller device 6, a direction switching flap (not shown) disposed between the third feed roller device 5 and the fourth feed roller device 6 is provided. At the same time, the fourth feed roller device 6 is driven in reverse, and the sheet is fed from the fourth feed roller device 6 to the switchback transport unit 7 disposed obliquely downward (right in the drawing). A punch unit 8 is disposed at the tip of the switchback conveying unit 7 having a feed roller (not shown), and a punching process is performed on the temporarily stopped paper. After the punching process, the paper is fed to the binder unit by the feed roller. 9 is sent to the paper alignment table 10 in 9.

  The binder unit 9 includes a binder cartridge 11 and a binder mounting mechanism 12. When one sheet of punched paper is stored in the paper alignment table 10, the binder mounting mechanism 12 removes one ring binder from the binder cartridge 11. The upper end portion holding the ring binder is rotated backward (left in the figure), and the ring binder is mounted on the paper on the paper alignment table 10. The paper loaded with the ring binder falls to the discharge unit 13, is sent toward the rear upper part by the belt conveyors 14, 15 of the discharge unit 13, falls into the stacker 16, and is stacked.

  Paper sensors S101, S102, S103 arranged in the transport unit 2, paper sensors S201, S202 of the switchback transport unit 7 and punch unit 8, paper sensor S301 of the binder unit 9, paper thickness sensor S302, and ring of the binder cartridge 11 All the sensors such as the size sensor S303, the binder remaining amount sensor S304, and the sheet sensors S401 and S402 of the discharge unit 13 are respectively connected to the control unit 17 of the sheet processing apparatus as shown in FIG.

  The control unit 17 communicates with the control unit of the copier 21, and according to the work mode set on the operation panel of the copier 21, the transport unit 2, the switchback transport unit 7, the punch unit 8, the binder unit 9, and the discharge unit 13 Control is performed and processing in the pass-through mode or the bind processing mode is executed. In executing the process, the sequence of each process such as feeding, punching, and binding is controlled based on the signals of the sensors S101 to S402, and the sensor signal is determined based on the sensor ON / OFF timing, ON / OFF duration, etc. Indicates an abnormality, an error code is transmitted to the control unit of the copying machine 21 and the operation of the sheet processing apparatus 1 is stopped. The control unit of the copying machine 21 displays an error code, an error occurrence location, an error content (paper jam, jamming of a punch unit or a binder unit, lack of consumables, etc.) and a countermeasure on a display unit (not shown) of the operation panel. indicate.

  The control unit 17 also outputs a discharge completion signal from the sensor S00X for detecting the paper discharge disposed in the vicinity of the paper discharge port among the various sensors S001 to S00X provided in the copier 21. To control the feed speed of the first feed roller device 3 of the transport unit 2.

  FIG. 3 shows a feed speed control routine of the first feed roller device 3, which receives the start signal of the copying machine from the standby state and starts each mechanism (step 101). The feed rollers of the first feed roller device 3 are Then, it is rotationally driven at the same peripheral speed as the feeding roller of the copying machine (step 102). Needless to say, if the feeding speed on the sending side (copier) does not match the feeding speed on the receiving side (first feeding roller device 3), the paper may be pulled and damaged. It is.

  The paper is pulled in at the same speed as the feeding speed of the copying machine until it passes through the sensor S00X for detecting the paper discharge of the copying machine 2, and the trailing edge of the paper passes the sensor S00X for detecting the paper discharging of the copying machine 2. Sometimes, the control unit 17 receives the discharge completion signal from the sensor S00X, proceeds from step 103 to step 104, and switches the feed speed of the first feed roller device 3 to a high speed. As a result, the paper is delivered to the second feed roller device 4 and subsequent ones having a high feed speed, and is transported to the punch section in a short time.

  When the first feed roller device 3 delivers the paper to the second feed roller device 4, the process returns from step 105 to step 102, where the first feed roller device 3 is decelerated to the same peripheral speed as the feed roller of the copying machine and supplies the next paper. Wait. The paper feed completion detection means of the first feed roller device 3 is configured to detect passage of the rear end of the paper by a sensor, or measures the rotation speed of the feed roller of the first feed roller device 3 after receiving the paper, Any configuration in which the paper feed is considered to be completed when the feed length is equal is acceptable.

  As described above, when the trailing edge of the paper is separated from the feeding roller of the copying machine, the feeding speed of the first feeding roller device 3 is changed at a high speed so that the trailing edge of the paper is completely drawn into the paper processing apparatus 1. After rare, the first feed roller device 3 shifts faster than the conventional machine that speeds up. That is, the shift timing is advanced by the amount of time from the time when the trailing edge of the paper is separated from the feeding roller of the copying machine until it is completely pulled into the paper processing apparatus, thereby widening the interval between the next paper to be fed. It is possible to cope with a copying machine having a high processing speed.

  The speed control described above is based on the premise that the signal of the paper discharge detection sensor S00X of the copying machine 21 can be transmitted to the paper processing apparatus 1, but a copying machine that does not include the paper discharge detection sensor S00X, Alternatively, the sheet processing apparatus 1 may be connected to a copying machine that does not have a function of transmitting a sheet discharge detection signal to the sheet processing apparatus. In this case, like the conventional machine, the feed speed control must be performed based on the paper passage signal of the sensor S101 arranged in the vicinity of the paper inlet of the paper processing apparatus 1, and these two control modes are set as necessary. If it is configured so that it can be selected, the above two types of copying machines can be handled.

  FIG. 4 shows a feed speed control routine of the first feed roller device 3 when the copying machine does not have a paper discharge detection signal transmission function. The control content is the same as that of the conventional machine, and the control routine of FIG. Only step 103 is different.

  First, the start-up signal of the copying machine is received from the standby state and each mechanism is started (step 201), and the feed roller of the first feed roller device 3 is driven to rotate at the same peripheral speed as the feed roller of the copier. (Step 202). The sheet is drawn at the same speed as the feeding speed of the copying machine 21 until it passes through the sensor S101 in the vicinity of the sheet entrance. When the trailing edge of the sheet passes through the sensor S101, the process proceeds from step 203 to step 204, where the first The feed speed of the feed roller device 3 is switched to high speed. As a result, the paper is delivered to the second feed roller device 4 and subsequent ones having a high feed speed, and is conveyed to the punch unit 8 at a high speed. When the first feed roller device 3 delivers the paper to the second feed roller device 4, the process returns from step 205 to step 202, where the first feed roller device 3 is decelerated to the same peripheral speed as the feed roller of the copying machine 21 and supplies the next paper. stand by.

  When the paper processing device is connected to the copier, the control unit of the paper processing device communicates with the control unit of the copier, and the control mode shown in FIG. 3 depends on whether or not the copier has a paper discharge detection signal transmission function. Alternatively, the control mode of FIG. 4 may be automatically selected.

  The present invention is not limited to the above embodiment, and various modifications can be made within the technical scope of the present invention. In the above embodiment, an example of a paper processing apparatus that performs punch and binder mounting processing has been described. However, the configuration of the present invention can be applied to a punch processing machine, other types of paper processing apparatuses, and the like. Naturally extends to those modified versions.

FIG. 3 is an explanatory diagram illustrating an example of a configuration of a sheet processing apparatus. The electric circuit block diagram of a paper processing apparatus. 6 is a flowchart of sheet feeding speed control of the sheet processing apparatus of the present invention. 10 is a flowchart of sheet feeding speed control of a conventional sheet processing apparatus.

Explanation of symbols

1 Paper handling device
2 Transport section
3 Feed roller device
4 Feed roller device
5 Feed roller device
6 Feed roller device
7 Switchback transfer section
8 Punch part
9 Binder part
10 paper alignment table
11 Binder cartridge
12 Binder mounting mechanism
13 Discharge section
14 Belt conveyor
15 Belt conveyor
16 Stacker
17 Control unit
21 Copier
31 Finisher
S001 to S00X Copier sensor
S101 to S402 Paper processing unit sensor

Claims (3)

A paper processing device that performs post-processing such as punching or punching and ring binder attachment processing on paper supplied from a copier, and copies the feed speed of the paper transport unit before and during paper loading. In the paper processing apparatus provided with a control means for controlling to the same feed speed on the machine side and increasing the feed speed of the transport unit at the time when the paper pull-in detection sensor detects the paper pull-in completion and transporting it to punch processing etc
A paper processing apparatus, comprising: a control unit that increases a feeding speed of a transport unit when a discharge completion signal from a paper discharge completion sensor provided on a copier side is received.   When the paper pull-in detection sensor detects the completion of paper pull-in, control means for increasing the feed speed of the transport unit and transporting it to punch processing, etc. and the discharge completion signal of the paper discharge completion sensor provided on the copier side are received. 2. A sheet processing apparatus according to claim 1, further comprising a switching unit capable of arbitrarily selecting a control unit for increasing the feeding speed of the transport unit at the time of the transfer. Communicate with the control unit of the copier and, depending on the presence or absence of the paper discharge completion signal communication function of the copier, when the paper pull-in detection sensor detects the paper pull-in completion, increase the feeding speed of the transport unit to punch processing etc. A control means for automatically switching between the transport control means and the control means for increasing the feed speed of the transport section when a discharge completion signal from a paper discharge completion sensor provided on the copier side is received. The sheet processing apparatus according to 1.

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